超长站距光传输工程应用及建设探讨  

Investigation on the Application and Construction of Ultra-Long Span Optical Transmission Project

作　　者：程细海[1] 王羿 邓黎[3] 殷天峰[4] 

机构地区：[1]中南电力设计院,湖北武汉430071 [2]武汉供电设计院有限公司,湖北武汉430022 [3]国家电网公司信息通信分公司,北京100761 [4]国网湖北省电力公司信息通信公司,湖北武汉430077

出　　处：《电力信息与通信技术》2015年第4期59-63,共5页Electric Power Information and Communication Technology

摘　　要：为适应特高压电网建设对超长站距光传输的需求,文章结合OSNR受限计算公式对超长站距光传输主要技术进行了简要分析,对符合G.652标准的超低损耗光纤作了介绍,经理论计算,SDH 2.5 Gbit/s光纤电路可实现372 km超长站距传输,列举近年来超长站距光传输发展在工程中的应用案例(其中实际运行最长电路346 km),总结了超长站距光传输工程建设经验,并给出电路时延计算公式,对今后工程建设中提高传输距离、减少中继站具有一定的借鉴意义。In order to meet the requirements of the construction of ultra-high voltage grid for ultra-long span transmission, we brielly analyzed the major technologies of ultra-long span optical transmission together with OSNR limited calculation formula and introduced the ultra-low loss optic fiber that conforming to G.652 standard. Therefore a conclusion was made that at present the achievable transmission distance of SDH 2.5 Gbit/s is 372 km. We listed out the application cases of ultra-long span optical transmission in recent years and the maximum distance was 346 km, summarized the construction experience of ultra-long span transmission project and provided the time- delay calculating formula. Both of them have certain reference significance for future ultra-long span transmission project to increase transmission distance and reduce the number of optical repeater station.

关 键 词：超长站距光传输 无中继光传输 超低损耗光纤 

分 类 号：TN929.11[电子电信—通信与信息系统]